How do you simplify 9sqrty+3sqrty?

Jan 11, 2018

$12 \sqrt{y}$

Explanation:

It's just an addition of the members with the same terms:
$9 \setminus \textcolor{red}{\sqrt{y}} + 3 \setminus \textcolor{red}{\sqrt{y}}$
$12 \sqrt{y}$